Meeting abstract
A Clinical Report of the Shaping of a Lateral Metal-Free Bridge Made of Vita In-Ceram Zirconia
E. Cikač
Abstract
Because of some aesthetic imperfections and because metal is unsuitable for some patients, metal-free ceramic has been developed. A patient, 50 years old, is presented with a 6 year old faceted bridge on teeth 24, 25, 26, 27. The patient complained of thermal irritation in the cervical region. A clinical examination showed gingivitis and lack of hygiene. Between the toothsegment 26 and the
crown on 27 was a fracture, and the patient decided to have a new bridge made. A metal-free ceramic bridge made of Vita In-ceram zirconium was suggested as well as treatment of the periodontium by the Durr Vektor method. The teeth region 24 and 27 were anesthetized with local infiltration anesthetic. Silicone impression for
a temporary bridge was taken. Using the separatory bur in the red contra angle Titan TE 200 crowns 24 and 27 were separated and pulled with special dental forceps. Before beginning the preparation it is necessary to put the retraction thread in two levels circularly round the stump in the gingival sulcus to prevent bleeding. The 2 mm of
the tooth crown depth is marked by a diamond bur. Labial and palatal it is done with a special grooved diamond point LVS-1 with 1.2 mm grooves. The tooth is treated in the following order - occlusally, labially, approximately and palatally. At the same time a 0.5 mm rectangular step inside the sulcus is prepared. Finally the rims of the
step and the stump are treated with Titan Eva-head TK 14 with 0,4 working amplitude and a maximum of 6000 r.p.m. The final treatment with Arkansas stone follows. The thread is removed and the impression in the additional silicone or polyether is taken. The relation between the jaws is estimated with the silicone key. The acrylic temporary bridge is made directly in the mouth and is cemented with temporary cement. The ceramic-free construction
is cemented by adhesional technique.
Keywords
Hrčak ID:
10196
URI
Publication date:
15.9.2002.
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